U-Line H-4933 - User Manual

9 pages

Save Page as PDF

To Next Page

PAGE 1 OF 9 0721 IH-4933

π H-4933

ELECTRIC DRUM PUMP

1-800-295-5510

uline.com

SAFETY

GENERAL SAFETY

This pump is designed to transfer clean, non-abrasive,

and nonflammable liquids that are compatible with

pump materials.

For a list of materials and compatible chemicals see

uline.com.

Other factors such as viscosity, pressure, specific

gravity, temperature, concentration and chemical

combinations should also be considered when

determining compatibility. Always contact your

chemical supplier for compatibility recommendations.

Final selection should be based on actual field testing

under the conditions of intended use.

1. Know the pump application, limitations and

potential hazards.

CAUTION! Do not use to pump flammable

or explosive fluids such as gasoline, fuel

oil, kerosene, etc. Do not use in explosive

atmospheres. Pump should only be used with

liquids compatible with pump component

materials. Failure to follow this warning can

result in personal injury and/or property

damage.

CAUTION! Maximum continuous operation is 30

minutes. After using for 30 minutes, shut off unit

and allow to cool for 30 minutes before using

again.

2. Make certain that the power source conforms to the

requirements of the equipment.

3. Provide adequate protection and guarding around

moving parts.

4. Disconnect power before servicing.

5. Release all pressure within pump before servicing

any component.

6. Drain all liquids from pump before servicing.

7. Secure the discharge line before starting the pump.

An unsecured discharge line will whip, possibly

causing personal injury and/or property damage.

8. Check hoses for weak or worn condition before

each use, making certain that all connections are

secure.

9. Periodically inspect pump components. Perform

routine maintenance as required.

(See Maintenance section)

10. Provide a means of pressure relief for pumps where

discharge line can be shut off or obstructed.

11. Personal Safety

a. Wear safety glasses at all times when working

with pump.

b. Wear a face shield and proper apparel when

pumping hazardous chemicals.

12. When wiring an electrically-driven pump, follow all

electrical and safety codes, as well as the most

recent United States National Electrical Code (NEC)

and the Occupational Safety and Health Act (OSHA).

CAUTION! Risk of electrical shock! Never

connect the green (or green and yellow) wire to

a live terminal!

Para Español, vea páginas 4-6.

Pour le français, consulter les pages 7-9.

Main Page

Questions and Answers

K
Keith HessAug 10, 2025
What to do if the U-Line H-4933 has insufficient flow?
- A
  Amanda FowlerAug 10, 2025
  If your U-Line water pump has insufficient flow, there could be several reasons: * It might be due to the same reasons the pump doesn't prime. Check and repair as necessary. * The impeller or augers could be clogged, so clean them. * The discharge hose might be clogged; clean the discharge hose. * The discharge hose could be pinched, in which case, replace it. * The pumped liquid might be too viscous. Ensure you are using liquids within the pump's viscosity range.
S
Sara SanchezAug 26, 2025
How to fix a U-Line H-4933 that does not prime?
- B
  Bruce NolanAug 26, 2025
  If your U-Line water pump isn't priming, here are a few things you can check: * The impeller augers might be clogged. Clean the impeller and augers. * The discharge port could be clogged. Clean the discharge port and hose. * There might be a broken shaft coupling. Replace the shaft coupling. * The shaft seal could be worn or damaged. Replace the shaft seal.